/* ===== RESET & BASE ===== */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;background:#e8e4de;min-height:100vh;display:flex;flex-direction:column;font-size:14px;}

/* ===== HEADER ===== */
header{background:#1a1a1a;color:white;padding:12px 20px;display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:200;box-shadow:0 2px 8px rgba(0,0,0,0.4);}
.logo-mark{width:32px;height:32px;border:2.5px solid white;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:17px;flex-shrink:0;}
.brand{font-size:13px;font-weight:700;letter-spacing:0.08em;}
.brand-sub{font-size:10px;opacity:0.55;margin-top:1px;letter-spacing:0.04em;}
.spacer{flex:1;}
.hbtn{font-size:12px;padding:7px 14px;border:1px solid rgba(255,255,255,0.28);border-radius:6px;cursor:pointer;background:transparent;color:white;font-family:inherit;transition:all 0.15s;display:flex;align-items:center;gap:5px;}
.hbtn:hover{background:rgba(255,255,255,0.12);}
.hbtn.accent{background:white;color:#1a1a1a;border-color:white;font-weight:600;}
.hbtn.accent:hover{background:#e8e8e8;}

/* ===== APP LAYOUT ===== */
.app{display:grid;grid-template-columns:370px 1fr;flex:1;min-height:calc(100vh - 56px);}

/* ===== SIDEBAR ===== */
.sidebar{background:#f7f5f1;border-right:1px solid #ddd;display:flex;flex-direction:column;overflow-y:auto;max-height:calc(100vh - 56px);}
.tabs{display:flex;border-bottom:1px solid #ddd;background:#eeebe5;overflow-x:auto;flex-shrink:0;}
.tab{font-size:12px;padding:10px 14px;cursor:pointer;border:none;border-bottom:2.5px solid transparent;background:transparent;color:#666;white-space:nowrap;font-family:inherit;transition:all 0.15s;}
.tab:hover{color:#333;}
.tab.active{color:#1a1a1a;border-bottom-color:#1a1a1a;font-weight:700;}
.tab-content{display:none;flex:1;}
.tab-content.active{display:block;}
.section{padding:16px;}
.section-title{font-size:10px;font-weight:700;color:#999;text-transform:uppercase;letter-spacing:0.09em;margin-bottom:13px;display:flex;justify-content:space-between;align-items:center;}
.field{margin-bottom:11px;}
.field label{font-size:12px;color:#555;display:block;margin-bottom:4px;font-weight:500;}
.field input,.field select,.field textarea{width:100%;font-size:13px;padding:8px 10px;border:1px solid #ddd;border-radius:6px;background:white;color:#1a1a1a;font-family:inherit;transition:border-color 0.15s;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:#1a1a1a;box-shadow:0 0 0 2px rgba(26,26,26,0.06);}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:8px;}

/* small add button */
.small-btn{font-size:11px;padding:4px 10px;border:1px solid #bbb;border-radius:5px;cursor:pointer;background:white;color:#333;font-family:inherit;display:flex;align-items:center;gap:4px;}
.small-btn:hover{background:#f0f0f0;}

/* ===== LOAN ROW CARD ===== */
.loan-card{background:white;border:1px solid #e0e0e0;border-radius:8px;padding:12px;margin-bottom:10px;}
.card-header-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;}
.loan-card .card-num{font-size:10px;font-weight:700;color:#999;text-transform:uppercase;letter-spacing:0.06em;}
.loan-card .del-btn{display:flex;align-items:center;gap:4px;font-size:11px;padding:4px 10px;border:1px solid #ffcdd2;border-radius:5px;cursor:pointer;background:#fff5f5;color:#e53935;font-family:inherit;}
.loan-card .del-btn:hover{background:#ffebee;border-color:#e53935;}
.loan-card .field{margin-bottom:8px;}
.loan-card .field label{font-size:11px;color:#888;}
.loan-card .field input,.loan-card .field select{font-size:12px;padding:6px 8px;}

/* ===== INVOICE LINE CARD ===== */
.inv-card{background:white;border:1px solid #e0e0e0;border-radius:8px;padding:10px;margin-bottom:8px;position:relative;}
.inv-card .del-btn{position:absolute;top:8px;right:8px;background:none;border:none;cursor:pointer;color:#bbb;font-size:16px;}
.inv-card .del-btn:hover{color:#e53935;}
.inv-card .field{margin-bottom:7px;}
.inv-card .field label{font-size:11px;color:#888;}
.inv-card .field input{font-size:12px;padding:6px 8px;}

/* ===== LIVE CALC ===== */
.live-calc{background:#1a1a1a;color:white;padding:16px 16px 14px;margin-top:auto;flex-shrink:0;}
.calc-row{display:flex;justify-content:space-between;align-items:center;padding:4px 0;font-size:12px;opacity:0.75;}
.calc-row.due{font-weight:700;font-size:15px;opacity:1;margin-top:6px;padding-top:8px;border-top:1px solid rgba(255,255,255,0.2);}

/* ===== PREVIEW ===== */
.preview-wrap{background:#b0aca6;padding:28px 24px;overflow-y:auto;display:flex;flex-direction:column;align-items:center;gap:28px;}

/* ===== DOCUMENT ===== */
.doc{background:white;width:100%;max-width:620px;padding:36px 38px;font-size:11px;color:#1a1a1a;box-shadow:0 6px 28px rgba(0,0,0,0.22);line-height:1.5;}

/* doc header */
.doc-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px;}
.logos{display:flex;align-items:center;}
.header-logo{height:64px;width:auto;display:block;object-fit:contain;}
.company-info{text-align:right;}
.co-name{font-size:10px;font-weight:700;}
.co-detail{font-size:8px;color:#555;line-height:1.65;margin-top:4px;}

/* banner */
.banner{height:40px;background:repeating-linear-gradient(45deg,#ddd 0,#ddd 4px,#e8e8e8 4px,#e8e8e8 8px);margin:14px 0;border-radius:2px;}

/* client meta */
.doc-meta{font-size:10px;margin-bottom:14px;}
.client-meta{font-size:10px;line-height:2;margin-bottom:18px;}
.cmrow{display:flex;}
.cmlbl{font-weight:700;width:128px;flex-shrink:0;}

/* section heading */
.doc-section-h{text-align:center;font-weight:700;font-size:11px;margin-bottom:14px;line-height:1.7;}

/* table */
table.dt{width:100%;border-collapse:collapse;font-size:9.5px;margin-bottom:12px;}
table.dt th{background:#1a1a1a;color:white;padding:6px 8px;text-align:left;font-weight:700;font-size:8.5px;white-space:nowrap;}
table.dt td{padding:8px 8px;border-bottom:0.5px solid #e0e0e0;vertical-align:top;}
table.dt tbody tr:last-child td{border-bottom:none;}
.rmk{font-size:8.5px;line-height:1.65;}
.rmk strong{display:block;margin-bottom:1px;}

/* fine print */
.fine-print{font-size:7px;color:#777;line-height:1.55;margin-top:10px;border-top:0.5px solid #ddd;padding-top:10px;}

/* footer */
.doc-footer{margin-top:14px;}
.badges{display:flex;gap:6px;align-items:center;padding-bottom:10px;border-bottom:0.5px solid #e0e0e0;margin-bottom:10px;}
.badge{min-width:38px;height:20px;border:0.5px solid #bbb;border-radius:2px;font-size:5.5px;color:#999;display:flex;align-items:center;justify-content:center;text-align:center;padding:2px 4px;line-height:1.2;}
.sig{display:flex;justify-content:flex-end;}
.sig table{border:0.5px solid #ccc;font-size:8.5px;border-collapse:collapse;}
.sig td{padding:4px 24px;border:0.5px solid #ccc;text-align:center;min-width:100px;}
.sig-space{height:44px;}

/* invoice label */
.inv-label{font-weight:800;font-size:12px;margin-bottom:12px;letter-spacing:0.04em;}

/* invoice totals */
.inv-totals{background:#f8f7f4;border:0.5px solid #e8e8e8;border-radius:4px;padding:10px 14px;margin-top:4px;margin-bottom:12px;display:flex;flex-direction:column;gap:3px;width:220px;margin-left:auto;}
.it-row{display:flex;justify-content:space-between;font-size:9px;color:#555;}
.it-row.due{font-weight:700;font-size:10px;color:#1a1a1a;margin-top:4px;padding-top:5px;border-top:0.5px solid #ccc;text-decoration:underline;}

/* payment block */
.pay-block{font-size:10px;line-height:2.1;}
.prow{display:flex;gap:8px;}
.prow strong{display:inline-block;width:130px;font-weight:700;flex-shrink:0;}

/* QR code */
.qr-block{display:flex;flex-direction:column;align-items:center;flex-shrink:0;width:155px;}
.qr-caption{font-size:7.5px;text-align:center;line-height:1.5;margin-bottom:8px;color:#333;}
.qr-caption strong{font-weight:700;}
.qr-img{width:128px;height:128px;object-fit:contain;display:block;}
.qr-uen{font-size:7.5px;text-align:center;margin-top:6px;color:#333;}
.qr-warning{font-size:7px;font-weight:700;text-align:center;border:0.5px solid #d4b483;background:#fdf8ee;padding:6px 8px;border-radius:3px;margin-top:8px;line-height:1.5;color:#333;}

/* terms */
.terms-body{font-size:8.5px;color:#333;line-height:1.65;}
.terms-body h4{font-size:9px;font-weight:700;margin:12px 0 4px;}
.terms-body p{margin-bottom:6px;}

/* ===== PRINT ===== */
@media print{
  *{-webkit-print-color-adjust:exact!important;print-color-adjust:exact!important;}
  body{background:white;}
  header,.sidebar{display:none!important;}
  .app{display:block;}
  .preview-wrap{background:white;padding:0;display:block;}
  .doc{box-shadow:none;max-width:100%;padding:24px 28px;page-break-after:always;margin:0;}
  .doc:last-child{page-break-after:auto;}
  table.dt th{background:#1a1a1a!important;color:white!important;}
}

/* ===== TOAST ===== */
.toast{position:fixed;bottom:24px;right:24px;background:#1a1a1a;color:white;padding:12px 20px;border-radius:8px;font-size:13px;z-index:9999;opacity:0;transform:translateY(8px);transition:all 0.25s;pointer-events:none;}
.toast.show{opacity:1;transform:translateY(0);}

/* QR code block */
.qr-block{display:flex;flex-direction:column;align-items:center;flex-shrink:0;width:155px;}
.qr-caption{font-size:7.5px;text-align:center;line-height:1.5;margin-bottom:8px;color:#333;}
.qr-caption strong{font-weight:700;}
.qr-img{width:128px;height:128px;object-fit:contain;display:block;}
.qr-uen{font-size:7.5px;text-align:center;margin-top:6px;color:#333;}
.qr-warning{font-size:7px;font-weight:700;text-align:center;border:0.5px solid #d4b483;background:#fdf8ee;padding:6px 8px;border-radius:3px;margin-top:8px;line-height:1.5;color:#333;}